According to the problems of blocked chips and hole qualities in the drilling of small caliber gun barrel,a installation of low-frequency vibration drilling is designed.

Based on the character of position of small caliber guns on board and the guns’ effectiveness against anti-ship missile, a kind of optimum distribution of small caliber guns against anti-ship missiles and the algorithm to calculate its effectiveness were conducted.

Research on fire control algorithm of small caliber naval gun barrage maneuvering target;

Based on the analysising of the trajectory theories,the small dynamic balance angle of small caliber anti-aircraft gun non-HET shell was obtained and the resistance coefficient of different fire angle in effectively shoot the distance was show basic homology to trajectory characteristic.